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Patent model for printers' quoins
From the collection of National Museum of American History. Free to download, adapt and use — no permission needed.
About this work
This patent model demonstrates an invention for quoins slotted together along the oblique side, which included a key for their adjustment; the invention was granted patent number 228410. (Carlo Squintani was from London, England.)
National Museum of American History’s own descriptionSubjects
Credit linePatent model for printers' quoins. ca 1880. Squintani, Carlo G.. National Museum of American History. CC0.
